In order to prevent excessive abrasion, the hardness of the grinding jars used and of the grinding balls must be higher than that of the material used. Normally, grinding jars and grinding balls of the same material should be chosen.

Grinding Jar Ball Configurations (e.g. zirconium oxide balls)

Grinding Jar Volume

100ml

250ml

500ml

1000ml

Compatible Ball Weight

100g

250g

500g

1000g

Φ5mm grinding balls (0.39g)

52 pcs (20%)

128 pcs (20%)

257 pcs (20%)

Φ10mm grinding balls (3.17g)

16 pcs (50%)

40 pcs (50%)

79 pcs (50%)

63 pcs (20%)

Φ15mm grinding balls (10.71g)

3 pcs (30%)

7 pcs (30%)

14 pcs (30%)

47 pcs (50%)

Φ20mm grinding balls (25.39g)

12 pcs (30%)

These values are just for recommendation, the number of balls should be determined experimentally if necessary.